25022819 has 2 divisors, whose sum is σ = 25022820. Its totient is φ = 25022818.

The previous prime is 25022773. The next prime is 25022839. The reversal of 25022819 is 91822052.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25022819 - 2²⁰ = 23974243 is a prime.

It is a super-4 number, since 4×25022819⁴ (a number of 31 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 25022791 and 25022800.

It is not a weakly prime, because it can be changed into another prime (25022839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12511409 + 12511410.

It is an arithmetic number, because the mean of its divisors is an integer number (12511410).

Almost surely, 2^25022819 is an apocalyptic number.

25022819 is a deficient number, since it is larger than the sum of its proper divisors (1).

25022819 is an equidigital number, since it uses as much as digits as its factorization.

25022819 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 25022819 is about 5002.2813795307. The cubic root of 25022819 is about 292.4907109817.

The spelling of 25022819 in words is "twenty-five million, twenty-two thousand, eight hundred nineteen".